Wrench.



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J. A. SGHANNO.

WRENEH. APPLICATX'ON FILED SEPT. 21. 1918'.

Patented Feb.18,1919.

JOSEPH A. SGHANNO, 0F BROOKLYN, NEW YORK.

WRENCH.

Application filed September 27. 1918. Serial No. 255.922.

To all whom it may concern:

Be it known that I, JOSEPH A. SCl-IANNO, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented new and useful Improvements in Wrenches, of which the followingis a specification.

This invention relates to in wrenches, the object being to provide asimple and inexpensive wrench for use in places where it is impossibleto swing the handle in the usual manner, the wrench being especiallyuseful aboard ship.

Another object of the invention is to provide a wrench having a handleprovided With a plunger movable longitudinally thereof, with meansconnecting the plunger and the jaws of the wrench to convert thelongitudinal movement of the plunger into a reciprocatory movement ofthe jaws.

Other objects and advantages of the invention will appear as thefollowing description is read in connection with the accompanyingdrawings.

In the drawings:-

Figure 1 is a plan view of a wrench embodying the present invention;

Fig. 2 is a side elevation of the same;

Fig. 3 is a longitudinal sectional view;

Fig. 4 is a transverse sectional view; and

Fig. 5 is a detail perspective view of the plunger.

Referring to the drawings, in detail, wherein like characters ofreference denote corresponding parts, the handle of the wrench isindicated at 10. This handle is tubular in form and is diametricallyslotted for a distance of approximately two-thirds its length as shownat 11..

Mounted in the outer end of the slotted end of the handle upon a pivot12, are jaws 13, which are adapted to receive the nut or other elementto be turned. These jaws are rigid with respect to one another and haveprojecting therefrom an arm 14.

Mounted within the. opposite end of the handle 10 is a plunger 15, whichis preferably tubular in form. The inner end of this plunger is slottedand formed with gibs 16, which operate in the slot 11 so as to provide across head for the inner end of the plunger. Pivotally secured to thiscross head is one end of a connecting bar 18, the opposite end of thisbar being pivoted as at 19 to the inner improvements Specification ofLetters Patent.

Patented Feb. 18, 1919.-

In the use of the wrench the jaws are placed upon the nut and the outerend of the plunger 15 struck with a hammer or other instrument. Thisforces the plunger inward and moves the jaw at the pivot 12. The pivot19 may be moved to either side of the handle 10 so as to regulate thedirection of rotation of the nut.

It will be seen that the above described invention provides a simple andeflicient means for converting a longitudinal movement into areciprocatory movement, permitting of the use of the wrench in places inwhich the use of an ordinary wrench is impossible.

The invention is susceptible of various changes in its form, proportionsand minor details of construction and the right is reserved to make suchchanges as will properly fall within the scope of the appended claims.

Having described the invention, what is claimed is 1. A wrench embodyinga handle, jaws carried thereby, a plunger movable longitudinally of thehandle and a toggle connecting the jaws and plunger for converting thelongitudinal movement of the plunger into a reciprocatory movement ofthe jaws.

2. A wrench embodying a tubular handle slotted through a portion of itslength, jaws pivotally mounted at the outer extremity of said slot, aplunger movable longitudinal in the handle and a rod connecting the jawsand plunger for converting longitudinal movement of the plunger intoreciprocatory movement of the jaws.

3. A wrench embodying a tubular handle diametrically slotted throughouta portion of its length, jaws pivotally mounted at the outer extremityof said slot, a plunger movable longitudinally in the handle, a crosshead carried at the inner end of the plunger and guided in said slot anda rod having one end pivotally secured to the cross head and the otherend pivotally secured to the jaws, whereby movement of the plunger willcause the jaws to turn upon their pivot.

In testimony whereof I affix my signature.

JOSEPH A. SOHAN N O.

Gopiles of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, Washington, D. G.

